The iambic trimeter derives its name from its essential shape, which is three metrical units (hence trimeter) which are each basically iambic in form. The iambic metron has the following shape (where the x is an anceps, the - is a longum, and the u is a brevis):
Hence, reversing the current running though a wire will have the affect of reversing the direction of the magnetic force at a point some distance away from the wire. The affect that this has on the overall magnetic field depends on the shape of the wire.
Answers. Best Answer: Reverse polarity is the opposite of normal polarity. Normal polarity in electronics is when you have the positive hooked up to the positive terminal and the negative to the negative terminal.Reverse polarity would be having the positive hooked up to the negative terminal and the negative to the positive terminal.The same concept can be used with magnets. magnetic field (like Earth's) has a north pole and a south pole. If it flips so that the north pole is where the south pole was and vice versa the polarity has reversed. Source(s): http://en.wikipedia.org/wiki/Earth's_mag... water_skipper Â· 7 years ago.